XtremepowerUS 1/4 HP Single Stage Rotary Vane Vacuum Pump 3 CFM Air Conditioner Refrigeration HVAC Air AC A/C R410a R134 (3 CFM) 110V 60Hz 1/4hp Motor 3 CFM Single Stage Rotary Vane Vacuum Pump High Efficiency & Low Noise With Internal High Volume Cooling Fan for Extended Use Heavy Duty Aluminum Alloy Casing Oil Drain Plug Positioned at Bottom of Oil Reservoir